E-cigarette Controller Solution

  The E-cigarette Controller Solution is a high-cost-performance, low-power control solution specifically designed for e-cigarette devices. Developed based on the Nyecon NY8 series microcontroller, this solution integrates core functions such as lithium battery charge/discharge management, atomization output control, multiple safety protections, and human-machine interaction indicators. Leveraging the high integration and excellent cost-effectiveness of the NY8 series chip, this solution achieves ultimate cost control and power consumption optimization while ensuring full functionality, making it an ideal choice for e-cigarette products.

Ultimate Cost-Optimized Solution:

• Main Control Chip: Adopts the Nyecon NY8 series 8-bit microcontroller. This chip features a built-in high-precision RC oscillator, ADC, and PWM. Its extremely streamlined peripheral circuit minimizes BOM cost while providing sufficient computing power, making it highly competitive in the market.
• Integration: A single chip integrates key detection, LED driving, atomization output control, and battery management logic, eliminating the need for additional expensive dedicated logic chips.

Electrical Specifications:

• Operating Voltage: 3.0V ~ 4.2V (compatible with a single 3.7V lithium battery).
• Static Power Consumption: < 5μA (Measured at 4.9μA). The extremely low standby power consumption ensures the battery can last for months even when the product is not in use for extended periods.
• Charging Specification: Supports 5V input, with charging current approximately 450mA~500mA, delivering high charging efficiency.
• Load Capability: Supports multi-level voltage-adjustable output, capable of driving low-resistance heating coils to meet high-power output requirements.

This controller provides users with clear status feedback through simple button operations and LED indicators.

Power On/Off & Lock:

• Five-Click Power On/Off: Press the button 5 times consecutively within 2 seconds to lock or unlock the vaping function. Upon successful mode switching, the LED indicator will flash accordingly as a prompt.

Battery Level & Charging Indication:

• Charging Status: When the charger is connected, the corresponding battery-level LED stays on.
• Fully Charged Alert: After charging is complete, the blue LED flashes 20 times and then turns off, indicating the battery is fully charged.

Multiple Safety Protection Mechanisms:

• Short-Circuit Protection: Equipped with hardware-level short-circuit detection. When a short circuit occurs at the output (e.g., direct connection to the battery negative terminal) or the load resistance is too low, the system immediately cuts off the output and alerts the user by flashing the white LED 5 times, effectively preventing device damage and safety hazards.
• Over-Inhalation Protection: If a single vaping session exceeds 10 seconds, the system automatically stops the output and prompts the user by flashing the LED 8 times, protecting both the user and the device.
• Low-Voltage Protection: When the battery voltage drops below 3.1V, pressing the button stops the output and the red LED flashes 15 times, preventing battery over-discharge.

Hardware Architecture:

• MCU: Nyecon NY8 series, compact and powerful.
• Power Management: Built-in charging management circuit supports direct USB charging.
• Drive Circuit: Uses a MOSFET to drive the heating coil, ensuring fast switching response and stable output.

Multi-Level Voltage Adjustment:

• Supports multi-level adjustment. The output power can be smoothly adjusted by rotating the potentiometer, satisfying different users’ vapor production needs.

Low-Power Design:

• The chip automatically enters sleep mode when idle. The measured power-off current is only 4.9μA, and the system enters a deep low-power mode after 3 minutes of standby, maximizing standby time.

Status Feedback:

• All operational and protection statuses are clearly fed back through LED indicators, allowing users to understand the device status at any time for a more reassuring experience.